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authorHerbert Xu <herbert@gondor.apana.org.au>2005-04-19 22:30:14 -0700
committerDavid S. Miller <davem@davemloft.net>2005-04-19 22:30:14 -0700
commit357b40a18b04c699da1d45608436e9b76b50e251 (patch)
tree51c4480c9508a911d52a3f69bbe84ec1191fd202 /include/linux
parentfd92833a52b972aafacced959f4a3f7541936a9b (diff)
[IPV6]: IPV6_CHECKSUM socket option can corrupt kernel memory
So here is a patch that introduces skb_store_bits -- the opposite of skb_copy_bits, and uses them to read/write the csum field in rawv6. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/skbuff.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index aa35797ebfb..9f2d75e4f08 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1183,6 +1183,8 @@ extern unsigned int skb_checksum(const struct sk_buff *skb, int offset,
int len, unsigned int csum);
extern int skb_copy_bits(const struct sk_buff *skb, int offset,
void *to, int len);
+extern int skb_store_bits(const struct sk_buff *skb, int offset,
+ void *from, int len);
extern unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb,
int offset, u8 *to, int len,
unsigned int csum);